All Samsung error codes
This page brings together Samsung error codes sorted by type of fault: what each code means, its likely causes, and what you can safely check before calling a professional.
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The Samsung codes on this page, grouped by type of fault.
Circuit board — Samsung
A control or power board stops responding. A full restart sometimes clears a false fault; otherwise it needs to be replaced.
Code E135Critical severityair-to-air
EEPROM memory fault, indoor unit
Possible causes
- Corrupted EEPROM
- Power surge
- Faulty PCB
What you can check
- Cut power for 30 minutes, then restart
Models affected: Wind-Free, AJ, AR, Cebu, Luzon
This fault requires a qualified technician. Do not open the unit.
Code E162Critical severityair-to-air
EEPROM memory fault, indoor unit
Possible causes
- Faulty indoor circuit board
- Electrical disturbance
Models affected: Wind-Free, AJ, AR, Cebu, Luzon
This fault requires a qualified technician. Do not open the unit.
Communication — Samsung
The indoor and outdoor units can no longer communicate. It’s usually the connecting cable or a board, not the refrigerant circuit.
Code E201Medium severityair-to-air
Communication error between units (multi-split)
Possible causes
- A unit’s connecting cable is cut
- An indoor unit is powered off
- Incorrect addressing
What you can check
- Check that all units are powered on
- Check the connecting wiring of each unit
- Cut power to the whole system for 30 minutes, then restart
Models affected: Wind-Free multi, AJ multi, Free Joint Multi
This fault requires a qualified technician. Do not open the unit.
Discharge temperature — Samsung
The compressor outlet temperature exceeds the safety threshold. This points to low refrigerant or poor heat exchange.
Code E404Critical severityair-to-air
Compressor overload/overheat protection
Possible causes
- Compressor thermal overload
- Excessive high pressure
- Low refrigerant charge
- Dirty outdoor coil
What you can check
- Clean the outdoor coil
- Cut power for 1 hour to let it cool down
Models affected: Wind-Free, AJ, AR, Cebu
This fault requires a qualified technician. Do not open the unit.
All Samsung codes published on the site
This list updates automatically whenever a new guide is added.
Technical information provided for guidance only, based on manufacturer documentation and field reports. It does not replace a diagnosis by a qualified professional. Found an error on this page? Report it.